Detective Bureau 2-3: Go to Hell Bastards!

Police detective Tajima, tasked with tracking down stolen firearms, turns an underworld grudge into a blood-bath. Suzuki transforms a colorful pot-boiler into an on-target send-up of cultural colonialism and post-war greed.
Tajima is a private detective in charge of his own company, Detective Bureau 2-3. When warring criminal gangs go overboard by robbing U.S. military munitions, Tajima steps in to stop what the cops can't.